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Yep, until they can just be left in the dark. But they indeed like a little light to trigger them when ready, though they do not feed on it like plants do.

I plan on harvesting their co2 and feed it to my cannabis plants.

The mushrooms can be eaten or used for medicine, as a by product.

Oh wow, never thought CO2 harvest was done this way. The kind of things you learn here. ❤️